2 years ago

The universe could be considered an isolated system because

Physics

1 answer:

Stolb23 [73]2 years ago

4 0

Answer:

A(many people think that no energy or matter exists outside the universe)

Explanation:

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Given;

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height of fall, h = 2 m

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$P.E = K.E\\\\mgh = \frac{1}{2} mv^2\\\\gh = \frac{1}{2} v^2\\\\v^2 = 2gh\\\\v = \sqrt{2gh} \\\\v = \sqrt{2\times 9.8\times 2} \\\\v = 6.261 \ m / s$

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